Fix python compatibility test when a new generated code imports an old version(2.6.1 or older) generated code.
diff --git a/python/compatibility_tests/v2.5.0/test.sh b/python/compatibility_tests/v2.5.0/test.sh
index c640da8..78c16ad 100755
--- a/python/compatibility_tests/v2.5.0/test.sh
+++ b/python/compatibility_tests/v2.5.0/test.sh
@@ -92,16 +92,10 @@
# Test A.3:
# proto set 1: use old version
# proto set 2 which may import protos in set 1: use new version
-# Compatiblility test fail if the old verison is less than 3.0.0-alpha-1.
-# Because module name aliases was added in v3.0.0-alpha-1 instead of
-# fully-qualified module names to refer to dependencies: dot was replaced
-# with _dot_.
-if [ "$(printf "$OLD_VERSION\n3.0.0" | sort -V | head -n 1 )" = "3.0.0" ]; then
- cp old_protoc protoc_1
- cp ../../../src/protoc protoc_2
- python setup.py build
- python setup.py test
-fi
+cp old_protoc protoc_1
+cp ../../../src/protoc protoc_2
+python setup.py build
+python setup.py test
rm google -r -f
rm build -r -f
